Fowles, Gerald W. A. published the artcileDonor properties of simple ethers. II. Complexes of manganese(II), iron(II), cobalt(II) and nickel(II) halides with tetrahydrofuran and 1,2-dimethoxyethane, Name: Cobalt(II) dibromo(1,2-dimethoxyethane), the publication is Journal of Inorganic and Nuclear Chemistry (1969), 31(10), 3119-31, database is CAplus.
The reactions of several dihalides of Mn(II), Fe(II), Co(II), Ni(II), cu (II), and Cd(II), and Fe(III) chloride with tetrahydrofuran and 1,2-dimethoxyethane have been investigated and the following complexes prepared: MCl2.1.5-C4H8O (M = Mn, Fe, or Co), CoX2.C4H8O (X = Br or I), NiCl2.C4H8O.EtOH, MX2.C4H10O2 (M = Mn, Fe, Co, Ni, or Cd and X = Cl, Br, or I), FeCl3.C4H10O2, and 2CuCl2.C4H10O2. The structures of several of these complexes have been deduced from a study of their electronic spectra, far-ir spectra, and room temperature magnetic properties. However, the magnetic moments of several of these complexes (e.g. pseudotetrahedral CoX2.-C4H10O2) are unusual in that they exhibit marked temperature dependence, although the ground state formally is an orbital singlet. The tetrahydrofuran derivatives MCl2.1.5C4H8O are of unusual stoichiometry, and while it is suggested that these products are a 1:1 mixture of tetrahedral CoCl2.2C4H8O and octahedral CoCl2.C4H8O their structure remains in some doubt.
Journal of Inorganic and Nuclear Chemistry published new progress about 18346-57-1. 18346-57-1 belongs to bromides-buliding-blocks, auxiliary class Cobalt, name is Cobalt(II) dibromo(1,2-dimethoxyethane), and the molecular formula is C4H10Br2CoO2, Name: Cobalt(II) dibromo(1,2-dimethoxyethane).
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary